Method for adjusting an angle of rotation, and phase displacement device for carrying out said method

US7380529B2 · kind B2 · utility

Assignee

• Aft Atlas Fahrzeugtechnik GmbH · DE

Inventors

• Uwe Finis · Neuenrade, DE
• Kave Kianer · Dortmund, DE
• Marco Rohe · Herscheid, DE
• Markus Wilke · Leverkusen, DE

Key dates

• Filing date: Nov 5, 2004
• Grant date: Jun 3, 2008
• Expiry date: Nov 5, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L9/20
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for adjustment of the relative angle of rotation between a camshaft and a crankshaft in an internal combustion engine through an electromechanical phase adjuster is provided. The invention provides a rapid and precise adjustment behavior. To that end, a deviation of the adjustment speed (ΔΩ) between a desired adjustment speed (ΩSOLL) and an actual adjustment speed (ΩIST) is calculated from at least one measurement parameter in a second control loop cascaded below the first control loop. An output parameter is calculated dependent on the deviation of the adjustment speed (ΔΩ) through an adjustment speed adjuster (26) cascaded below the angle of rotation adjuster (23), with the output parameter being used to adjust the angle of rotation (Φ) using an electromechanical actuator (14). The relative angle of rotation can be rapidly and precisely adjusted by adjusting the adjustment speed. A phase adjuster for controlling the relative angle of rotation is also provided.